Bandwidth Used by EIGRP

Unanswered Question
Jan 12th, 2009

Hi, How we can know how much bandwidth is used by EIGRP process on the interface. Like, if s0 has 2 Mbs link, and EIGRP used 50% by default. I want to see the concurrent bandwidth used by Eigrp. Please help.

I have this problem too.
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Giuseppe Larosa Tue, 01/13/2009 - 02:06

Hello Rupesh,

in a steady state network EIGRP uses very few bandwidth just to exchange hello packets.

the ip eigrp bandwidth-percent command allows to shape the EIGRP rate during sending updates.

But EIGRP sends updates only when needed: new networks or state changes.

This is different from what RIP does : it sends updates for all known routes every 30 seconds.

OSPF refreshes LSAs every 30 minutes.

So you shouldn't face issues with EIGRP on a E1 link in normal conditions

Hope to help

Giuseppe

Joseph W. Doherty Tue, 01/13/2009 - 05:24

As Giuseppe notes, EIGRP bandwidth usage on an E1 is unlikely to be of much concern. However, one method to see its bandwidth usage would be to use CBWFQ and dedicate a class to EIGRP. That class's stats would provide bandwidth usage information.

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